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Joint projects

Chemistry

JRP 05-14

Partners

Contact

Dr. N. Bryan

Victoria University of Manchester - Centre for Radiochemistry Research - School of Chemistry - Oxford Road - M13 9PL Manchester - United Kingdom

+ 44 (0) 161 275 77 93

+ 44 (0) 161 275 45 98

Investigation of the solubility and solution chemistry of neptunyl(V) and uranyl (VI) in the presence of iodate

Status

Terminated

- Planned from December 2006 till December 2007

Goals

The aim of this joint research project is to study the interaction between uranyl/neptunyl cations and iodate anions in solution, as well as actinyl solubility under a range of aqueous experimental conditions. In particular, the elevated temperature and pH environments, which can be expected in an underground repository for high-level nuclear waste, are investigated.

Expected results

The results of this joint research project will contribute to the knowledge of the release of the long lived radioisotopes 'uranium' (primarily ²³⁵/²³⁸U), 'neptunium' (²³⁷Np) and 'iodine' (¹²⁹I) into the environment. This is a key concern for the long term storage of nuclear materials in waste repositories. In addition, the project also provides data for post-closure RPA calculations.